Organic semiconductor rubrene thin films deposited by pulsed laser evaporation of solidified solutions

Natalia Majewska; Maria Gazda; Rafał Jendrzejewski; Sayani Majumdar; Mirosław Sawczak; Gerard Śliwiński

doi:10.1117/12.2276250

Organic semiconductor rubrene thin films deposited by pulsed laser evaporation of solidified solutions

Abstract

Organic semiconductor rubrene (C42H28) belongs to most preferred spintronic materials because of the high charge carrier mobility up to 40 cm2(V·s)-1. However, the fabrication of a defect-free, polycrystalline rubrene for spintronic applications represents a difficult task. We report preparation and properties of rubrene thin films deposited by pulsed laser evaporation of solidified solutions. Samples of rubrene dissolved in aromatic solvents toluene, xylene, dichloromethane and 1,1-dichloroethane (0.23-1% wt) were cooled to temperatures in the range of 16.5-163 K and served as targets. The target ablation was provided by a pulsed 1064 nm or 266 nm laser. For films of thickness up to 100 nm deposited on Si, glass and ITO glass substrates, the Raman and AFM data show presence of the mixed crystalline and amorphous rubrene phases. Agglomerates of rubrene crystals are revealed by SEM observation too, and presence of oxide/peroxide (C42H28O2) in the films is concluded from matrix-assisted laser desorption/ionization time-offlight spectroscopic analysis.

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Authors (6)

Natalia Majewska
Maria Gazda prof. dr hab. inż.
Rafał Jendrzejewski
Sayani Majumdar
Mirosław Sawczak dr hab. inż.
Gerard Śliwiński prof.

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Category:: Conference activity
Type:: publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:: Third International Conference on Applications of Optics and Photonics; strony 1 - 9
Language:: English
Publication year:: 2017
Bibliographic description:: Majewska N., Gazda M., Jendrzejewski R., Majumdar S., Sawczak M., Śliwiński G.: Organic semiconductor rubrene thin films deposited by pulsed laser evaporation of solidified solutions// Third International Conference on Applications of Optics and Photonics;/ : , 2017, s.1-9
DOI:: Digital Object Identifier (open in new tab) 10.1117/12.2276250
Verified by:: Gdańsk University of Technology